Stan Wawrinka is still capable of delivering notable wins at 39 and a half years. The Swiss veteran made a rock-solid start at the ATP 250 event in Stockholm, toppling the 6th seed Brandon Nakashima 6-4, 6-4 in an hour and 20 minutes for his seventh ATP triumph of the season.

Stan Wawrinka, currently ranked 217th in the world, battled past seventh-ranked Russian Rublev, 7-6 (7/5), 7-6 (7/5) to notch his first win over a top-10 player this year.

Stan Wawrinka upsets top seed Andrey Rublev to reach Stockholm semi-finals; Watch all the ATP and WTA action on Sky Sports Tennis and Sky Sports+ which is integrated into Sky TV, streaming service NOW

Andrey Rublev will meet Stan Wawrinka in the Stockholm Open quarterfinals on Friday, October 18.Rublev’s last match was a win, 6-4, 7-5, over Alejandro Davidovich Fokina on September 29,